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A077635 LCM of terms in periodic part of continued fraction expansion of square root of -1+3^n. 12
2, 4, 10, 16, 210, 52, 10764, 160, 840, 484, 78225840, 1456, 5729631692400, 4372, 932723933480442148565520, 13120, 202096081896183783466278120, 39364, 1505075187143521116689096930825555405884185492185368021027531191578186233461600 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,1
LINKS
MATHEMATICA
Table[Apply[LCM, Last[ContinuedFraction[Sqrt[ -1+3^u]]]], {u, 1, 25}]
CROSSREFS
Sequence in context: A277918 A238720 A264585 * A125754 A097870 A244474
KEYWORD
nonn
AUTHOR
Labos Elemer, Nov 13 2002
STATUS
approved

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Last modified June 22 00:43 EDT 2024. Contains 373561 sequences. (Running on oeis4.)